How big are the Jets on a Triumph Bonneville?
Here’s another view of the carb bottom with float bowl removed. Once this was done, I was able to access the main jets, pilot jets and idle mixture screw to install the sizes and settings I wanted to test. In this case I was only changing the pilot jets from size 40 to size 42.
Can a vacuum piston be removed from a Triumph Bonneville?
It is important to know that you must hold the cover down while you loosen the last screw or the spring inside the carb may push the cover off unexpectedly, and you may lose or damage a part. After the diaphragm cover is carefully removed, remove and carefully store the spring. Now it is time to remove the vacuum piston.
How does the CVK work on a Triumph Bonneville?
As the piston floats up and down, it raises and lowers the needle inside this main jet. This action is what regulates the gas flow into the carb. After the piston is back in place and seated correctly all the way around, it is time to reinstall the cover. Make sure you remember to tighten the 4 screws down the same amount.
Where is the CARB Assembly on a Triumph Bonneville?
This allows the entire carb assembly to come off the engine and can be turned sideways on the left side of the bike. I found that a 2×2 wood placed between the transmission case and the carb assembly works well at holding it in place.
What kind of engine does the Triumph Bonneville America have?
The basic architecture of the America’s 790cc, twin-cylinder engine is as the Bonnie but a 270° firing interval – rather than 360° – gives a loping exhaust note and mellow power delivery that’s big on easy-going drive and heavy with character.
How tall is the seat height on a Triumph Bonneville?
And the America does distance to perfection. With forward-mounted chromed footpegs matched to a low 28inch seat height and raked back handlebars on a slab-style top yoke, the laid-back riding position offers day-long comfort and control in a finely developed ergonomic package.
It is important to know that you must hold the cover down while you loosen the last screw or the spring inside the carb may push the cover off unexpectedly, and you may lose or damage a part. After the diaphragm cover is carefully removed, remove and carefully store the spring. Now it is time to remove the vacuum piston.
As the piston floats up and down, it raises and lowers the needle inside this main jet. This action is what regulates the gas flow into the carb. After the piston is back in place and seated correctly all the way around, it is time to reinstall the cover. Make sure you remember to tighten the 4 screws down the same amount.